Voltage modifying circuit



Sept. 18, 1945. w w N 2,384,830

VOLTAGE MODIFYING CIRCUIT Filed April 12, 1943 OuTPuT INVENTOR.

Patented an, 18, 1945 UNITED STATES PATENT OFFICE VOLTAGE MODIFYING CIRCUIT I William w. Gal'stallg, Indianapolis, Ina, assignor to Electronic Laboratories, Incorporated, Indianapolis, Ind., a corporation of Indiana Application April 12, 1943, Serial No. 482,736

6 Claims. (Cl.171- -97) The present invention relates to improvements in electric systems adapted to modify the voltage delivered from a source of power to a load.

Y One of the objects of the present invention is to provide a system wherein there is provided a plurality of storage capacitors or condensers adapted to be alternately connected to the source of supply by the operation of suitable switching mechanism, preferab yzof the vibrating type, to charge the condensers or capacitors while the switch contacts are in closed position and arranged to discharge to the load while the switch contacts are in open or neutral position.

Another obiectof the invention is to provide a iull wave discharge from the condensers during the operation of the intermittently operated switches.

A still further object of my invention is to provide a voltage multiplying system whereby various multiples of the voltage of the supply source may be supplied simultaneously or separately, as desired, to a load or to different loads.

For the purpose of disclosing my invention, I have illustrated certain embodiments of the same in the accompanying drawing, in which:

Fig. 1 is a diagrammatic view 01' a circuit arrangernent embodying my invention; and

Fig. 2 is a diagrammatic view of another embodiment of my invention, in which I have provided tor a number of multiples of the voltage multiplications.

In the circuit disclosed in Fig. l, I provide a pair oi vibrating reeds I and 2 vibrated by a suitable electromagnet 2 having an energizing winding 4 and having included in its circuit a suitable resistance I. The winding 4 is connected to a suitable source of supply, as for. instance, a battery 4, and this circuit is controlled by contacts I and-l, one of which, I, is carried by the reed I. Ocoperatingwithreed I isa pairoirelatlvely ststicnurycontsctsi and III,oneoneachside ot thereedandashnilarpairorcontscts II and I2 cooperatewiththereedz Acondenserorastorage capacitor I2 isconnected between contacts Iland I2 andasimllarcondenser,l4.is connected betweenthecontactsland II. Contacts Iland ilareelectrlcsllyconnectemwhile contsctsland with the battery across the output When the reeds I and 2 are in engagement with contacts 2 and II respectively, the condenser I4 will be receiving a charge and the condenser Ilwill be discharging with the battery across the output. When the reeds I and 2 are in neutral position then condensers I 3 and I4 will be discharging in series across the output. Due to the rapid vibration of reeds I and 2, the charging and discharging of the condensers occurs with extremerapidity. Accordingly the voltage of the battery is substantially doubled and a full wave discharge is provided to the output side.

. In the circuit shown in Fig. 2, I have illustrated an arrangement whereby various multiples of voltage may be-derived from one circuit, either separately or simultaneously. In the arrangement, I provide two pairs of vibrating members or reeds, one pair consisting of the reeds I5 and I6 and the other pair-consisting of the reeds I! and I8. The reed I5 operates between relatively stationary contacts I8 and 20; reed I8 operates between contacts 2| and 22; reed I'I operates between contacts 23 and 24; and reed I8 operates between contacts 25 and 28. A condenser or storage capacitor 21 is connected between connected between contacts 23 and 25; a third condenser 29 is connected between contacts 22 and 24; and a fourth condenser 30 is connected between contacts III and 26. Contacts 2i and 24 are connected together as are contacts 22 and 23. Reeds I5 and II are connected tothe plus side of the battery 8, or other source of supply. While reeds I6 and I8 are connected to the minus side of the battery. Contact I! is connected to the plus side 3| of the output side of the circuit: contact 25 is connected to the minus lead 22, as is also contact 24; contact 24 is connected to the minus lead 28; contact 22 is connected to the.

minus lead 24. Accordingly. with the reeds II and II respectively engaging contacts" and 2| andreeds I1 and "ensui g contacts 220ml 2!, condensers 2i and 22willbeconnectedtotbs battery-in parallel, Similarly, with the-reeds Ii and I4engssingcontscts24and22andreeds II and II in engagement with contacts 24 and", condensers 22 and 32 will be connected to the battery in parallel. Thus, the pairs or condensers are alternately connected in parallel with the source of supply and are, according y. charged in parallel. However, with the seeds in neutral position, the condensers will discharge to the output side of the circuit and condensers 21 and 24 will discharge in series to the output leads 24 and 3| thus doubling the voltage delivered to the load connected to these leads. Likewise, condensers 21, 29 and 18 will be connected in series between leads 32 and ii, tripling the discharge voltage to a load connected to these leads, and condensers 21, ll, 29 and II will be connected in series between leads 3| and 33 quadrupling the voltage delivered to the load connected to these leads.

I claim as my invention:

1. In combination, a pair of storage capacitors normally connected in series between positive and negative output leads and a multiplicity of vibrating switches and cooperating stationary contacts connecting the capacitors said pair alternately with a source of charging supply. said capacitors discharging to the output leads in series on each movement of the switches to neutral position.

2. In combination, a pair of storage capacitors normally connected in series between positive and negative output leads, and means for connecting the capacitors of said pair alternately with a charging source of supply, said capacitors discharging tothe output leads during the period between their connection with the charging source.

3. In combination, a common output lead, a plurality of storage capacitors connected to said lead in series, a plurality of output leads to which only certain of said capacitors are connected in series, and means for connecting alternate groups of said capacitors in parallel with a source oi power, said capacitors discharging serially to said respective output leads when said connecting means is in neutral position.

4. In combination, an output lead, a plurality of storage capacitors connected to said lead in series, a plurality of output leads respectively connected to only certain of said capacitors, a plurality of vibratory contacts and associated stationary contacts, connecting alternate groups of said capacitors in parallel with a source of power, said capacitors discharging in series during the neutral position of said vibratory contacts. I

5. In combination, two pair or relatively stationary contacts, a capacitor connected between each pair, a pair of movable contact members cooperating with said stationary contacts and connected with a source or supply and engaging said stationary contacts to connect said capacitors in parallel with said source, two additional pair of relatively stationary contacts and an additional pair of movable contacts adapted to alternately engage said stationary contacts, a capacitor connected between each of said second pair oi contacts and connected in parallel with said source of power when said second-mentioned pair of movable contacts engages said secondmentioned pair of stationary contacts, a common output lead to which all of said capacitors are connected in series and a plurality of output leads, one connected to two 0! said capacitors in series, another connected tn three 0! said capacitors in series and a third connected to all 01 said capacitors in series, said capacitors discharging in series to said output leads when the movable contacts are in a neutral position and being charged when said movable contacts are engaging said stationary contacts to connect said capacitors in parallel with the source 0! power.

6. An electric circuit comprising a plurality oi output leads, a plurality of storage capacitors connected with one oi said output leads in series. all 01 said storage capacitors being connected in series with another of said output leads, a lesser number of said capacitors being connected in series with still another of said plurality of leads and a still lesser number of said capacitors being connected in series with still another oi said leads, and means for connecting groups of said capacitors in parallel alternately with a source 0! supply.

WILLIAM W. GARSTANG. 

